[Coco] The GIME test pin - what does it do?

[jdaggett at gate.net]

On 14 Jun 2009 at 20:28, Robert Gault wrote:


> James or anyone else,

> 

> Have you ever tried to make use of the test line, pin 39, on the GIME?

> It is tied to 5v through a resistor. What is likely to happen and/or

> what does happen if pin 39 is grounded.

> 

> Since we are trying to document everything the GIME can do, this seems

> like something worth trying. I'm to timid to try it as I don't want to

> fry the GIME or my Coco3.

> 



I wouls suspect that it goes into a internal test state so that the logic can be 
tested at various stages like die probe and final test after packaging. 

I may very well be tempted to build a test setup so that I can use and 
HC11EVB to try and do some static tests of the two vintage chips I have. . 

james